How to install properly

Hello ,I want to play Skyrim (never played it) and decided to go with full graphic and mod expierence ,because of little research I did which made it seem awesome with mods, so somehow I stumbled on this site as you can guess with my reg date.Yeah total newb that wants to experience Skyrim,please help me out! ;)

Now ,here is what problem I am facing :My SSD is 110 GB ,but is used for the OS and other stuff (60 gb /110gb) ,I have two normal hard-discs - one 298GB and one 233 GB.

" You need to have 80 GB free in the C:\ Drive and 80GB free in X:\ Drive for smooth sailing "

I downloaded the file in my 233gb HDD , extracted it in my game folder there (forgot to check the guide DL the game ,but now it's there) ,do I need to pay attention to that or no?

I mean when I have to cut 103 GB from the 233 GB HDD ,do i need to have 80GB free in my C;\\(SSD)

Edit: I'm with Win7, another question I want to ask ,if I were to part the HDD ,I have to install the base of the game (The elder scrolls V: Skyrim -Legendary Edition [r.g. catalyst] - ver.1.9.32.0.8

Thanks for the help ,will try it out tomorrow. Also I want to ask ,is there a way to find what the mods do (what they add and so on ) ,I'm interested in what to expect from this masterpiece of mash-up :)

You can search by .esp names on google or nexus and you can tell if a mod it's been merged by RM at the end of it and see the merge either in TES5Edit, MergePlugin, hovering over them with the mouse cursor in MO's Right Pane or select proprieties in the Left Pane.